Vulnerabilities > CVE-2019-1327 - Unspecified vulnerability in Microsoft Excel and Office 365 Proplus

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include('compat.inc');

if (description)
{
  script_id(129730);
  script_version("1.9");
  script_cvs_date("Date: 2020/01/30");

  script_cve_id("CVE-2019-1327", "CVE-2019-1331");
  script_xref(name:"MSKB", value:"4475558");
  script_xref(name:"MSKB", value:"4475554");
  script_xref(name:"MSKB", value:"4475569");
  script_xref(name:"MSFT", value:"MS19-4475558");
  script_xref(name:"MSFT", value:"MS19-4475554");
  script_xref(name:"MSFT", value:"MS19-4475569");

  script_name(english:"Security Updates for Microsoft Office Products (October 2019)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Office Products are affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Office Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - A remote code execution vulnerability exists in
    Microsoft Excel software when the software fails to
    properly handle objects in memory. An attacker who
    successfully exploited the vulnerability could run
    arbitrary code in the context of the current user. If
    the current user is logged on with administrative user
    rights, an attacker could take control of the affected
    system. An attacker could then install programs; view,
    change, or delete data; or create new accounts with full
    user rights.  (CVE-2019-1327, CVE-2019-1331)");
  # https://support.microsoft.com/en-us/help/4475558/security-update-for-office-2013-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2b215d1b");
  # https://support.microsoft.com/en-us/help/4475554/description-of-the-security-update-for-office-2016-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?477338a6");
  # https://support.microsoft.com/en-us/help/4475569/security-update-for-office-2010-october-8-2019
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1cf3228a");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:  
  -KB4475558
  -KB4475554
  -KB4475569
For Office 365, Office 2016 C2R, or Office 2019, ensure
automatic updates are enabled or open any office app and
manually perform an update.");

  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1331");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('audit.inc');
include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');
include('misc_func.inc');
include('install_func.inc');

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

bulletin = 'MS19-10';
kbs = make_list(
  '4475558',
  '4475554',
  '4475569'
);

if (get_kb_item('Host/patch_management_checks'))
  hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit('SMB/Registry/Enumerated', exit_code:1);

vuln = FALSE;
port = kb_smb_transport();

office_vers = hotfix_check_office_version();

# Office 2010 SP2
if (office_vers['14.0'])
{
  office_sp = get_kb_item('SMB/Office/2010/SP');
  if (!isnull(office_sp) && office_sp == 2)
  {
    prod = 'Microsoft Office 2010 SP2';

    path = hotfix_get_officeprogramfilesdir(officever:'14.0');
    path = hotfix_append_path(path:path, value:'Microsoft Office\\Office14');
    kb = '4475569';
    file = 'graph.exe';
    version = '14.0.7239.5000';
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;
  }
}

# Office 2013 SP1
if (office_vers['15.0'])
{
  office_sp = get_kb_item('SMB/Office/2013/SP');
  if (!isnull(office_sp) && office_sp == 1)
  {
    prod = 'Microsoft Office 2013 SP1';

    path = hotfix_get_officeprogramfilesdir(officever:'15.0');
    path = hotfix_append_path(path:path, value:'Microsoft Office\\Office15');
    kb = '4475558';
    file = 'graph.exe';
    version = '15.0.5179.1000';
    if (hotfix_check_fversion(file:file, version:version, path:path, kb:kb, bulletin:bulletin, product:prod) == HCF_OLDER )
      vuln = TRUE;
  }
}

# Office 2016
if (office_vers['16.0'])
{
  office_sp = get_kb_item('SMB/Office/2016/SP');
  if (!isnull(office_sp) && office_sp == 0)
  {
    prod = 'Microsoft Office 2016';

    path = hotfix_get_officeprogramfilesdir(officever:'16.0');
    path = hotfix_append_path(path:path, value:'Microsoft Office\\root\\Office16');


    # MSI graph.exe
    if (hotfix_check_fversion(file:'graph.exe', version:'16.0.4912.1000', channel:'MSI', channel_product:'Office', path:path, kb:'4475554', bulletin:bulletin, product:prod) == HCF_OLDER)
      vuln = TRUE;



    path = hotfix_get_officecommonfilesdir(officever:'16.0');
    prod2019 = 'Microsoft Office 2019';
    mso_dll_path = hotfix_append_path(path:path, value:'Microsoft Shared\\Office16');
    c2r_path = mso_dll_path;
    if (
      hotfix_check_fversion(file:"mso.dll", version:"16.0.10730.20386", channel:"Deferred", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:"mso.dll", version:"16.0.11328.20438", channel:"Deferred", channel_version:"1902", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:"mso.dll", version:"16.0.11929.20396", channel:"First Release for Deferred", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      hotfix_check_fversion(file:"mso.dll", version:"16.0.12026.20320", channel:"Current", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod) == HCF_OLDER ||
      # 2019
      hotfix_check_fversion(file:"mso.dll", version:"16.0.12026.20320", channel:"2019 Retail", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod2019) == HCF_OLDER ||
      hotfix_check_fversion(file:"mso.dll", version:"16.0.10351.20054", channel:"2019 Volume", channel_product:"Office", path:c2r_path, bulletin:bulletin, product:prod2019) == HCF_OLDER
    )
    vuln = TRUE;
  }
}
if (vuln)
{
  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}